PROBLEM TO BE SOLVED: To provide a culture apparatus useful for plant, algae, and bacterial growth applications.SOLUTION: The present invention provides the use of quantum dot (QD) LED in a culture apparatus. In the apparatus, a QDLED 1302 is a device that comprises a solid-state LED 1404 (usually emitting blue or UV light) as a primary light source and one or more QD elements as a secondary light source for down converting the primary light. In the apparatus for promoting the growth of a photosynthetic organism, the light emission profile of the QDLED 1302 is adjusted to correspond to the absorption spectrum of one or more photosynthetic pigments of an organism.SELECTED DRAWING: Figure 13【課題】植物、藻類や細菌の成長の用途に有用な培養装置の提供。【解決手段】量子ドット（ＱＤ）ＬＥＤの培養装置での使用。ＱＤＬＥＤ１３０２は、一次光源として固体ＬＥＤ１４０４（通常、青色又はＵＶ光を放射する）と、一次光をダウンコンバートする二次光源として１又は複数ＱＤ要素とを備えた装置。ＱＤＬＥＤ１３０２の発光プロファイルは、有機体の１又は複数の光合成色素の吸収スペクトルに対応するように調整される光合成生物の成長を促進させる装置。【選択図】図１３
